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Commit | Line | Data |
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5008d581 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
3b63d2d3 | 4 | Copyright 2010 Lennart Poettering, Kay Sievers |
3f93da98 | 5 | Copyright 2015 Zbigniew Jędrzejewski-Szmek |
5008d581 LP |
6 | |
7 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
8 | under the terms of the GNU Lesser General Public License as published by |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
5008d581 LP |
10 | (at your option) any later version. |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 15 | Lesser General Public License for more details. |
5008d581 | 16 | |
5430f7f2 | 17 | You should have received a copy of the GNU Lesser General Public License |
5008d581 LP |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
19 | ***/ | |
20 | ||
3f6fd1ba | 21 | #include <dirent.h> |
5008d581 | 22 | #include <errno.h> |
3f6fd1ba LP |
23 | #include <fcntl.h> |
24 | #include <fnmatch.h> | |
25 | #include <getopt.h> | |
26 | #include <glob.h> | |
5008d581 | 27 | #include <limits.h> |
3f6fd1ba LP |
28 | #include <linux/fs.h> |
29 | #include <stdbool.h> | |
30 | #include <stddef.h> | |
3b63d2d3 LP |
31 | #include <stdio.h> |
32 | #include <stdlib.h> | |
3f6fd1ba | 33 | #include <string.h> |
505ef0e3 | 34 | #include <sys/stat.h> |
ebf4e801 | 35 | #include <sys/xattr.h> |
3f6fd1ba LP |
36 | #include <time.h> |
37 | #include <unistd.h> | |
5008d581 | 38 | |
3f6fd1ba | 39 | #include "acl-util.h" |
b5efdb8a | 40 | #include "alloc-util.h" |
3f6fd1ba | 41 | #include "btrfs-util.h" |
430f0182 | 42 | #include "capability-util.h" |
c8b3094d | 43 | #include "chattr-util.h" |
3f6fd1ba LP |
44 | #include "conf-files.h" |
45 | #include "copy.h" | |
a0f29c76 | 46 | #include "def.h" |
4f5dd394 | 47 | #include "escape.h" |
3ffd4af2 | 48 | #include "fd-util.h" |
0d39fa9c | 49 | #include "fileio.h" |
3f6fd1ba | 50 | #include "formats-util.h" |
f4f15635 | 51 | #include "fs-util.h" |
7d50b32a | 52 | #include "glob-util.h" |
c004493c | 53 | #include "io-util.h" |
3f6fd1ba | 54 | #include "label.h" |
5008d581 | 55 | #include "log.h" |
54693d9b | 56 | #include "macro.h" |
d39efe74 | 57 | #include "missing.h" |
49e942b2 | 58 | #include "mkdir.h" |
4e036b7a | 59 | #include "mount-util.h" |
6bedfcbb | 60 | #include "parse-util.h" |
9eb977db | 61 | #include "path-util.h" |
c6878637 | 62 | #include "rm-rf.h" |
d7b8eec7 | 63 | #include "selinux-util.h" |
3f6fd1ba LP |
64 | #include "set.h" |
65 | #include "specifier.h" | |
8fcde012 | 66 | #include "stat-util.h" |
15a5e950 | 67 | #include "stdio-util.h" |
8b43440b | 68 | #include "string-table.h" |
07630cea | 69 | #include "string-util.h" |
3f6fd1ba | 70 | #include "strv.h" |
affb60b1 | 71 | #include "umask-util.h" |
b1d4f8e1 | 72 | #include "user-util.h" |
3f6fd1ba | 73 | #include "util.h" |
5008d581 | 74 | |
01000479 | 75 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 76 | * them in the file system. This is intended to be used to create |
db019b8d KS |
77 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
78 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 79 | |
66ccd038 | 80 | typedef enum ItemType { |
b8bb3e8f | 81 | /* These ones take file names */ |
3b63d2d3 LP |
82 | CREATE_FILE = 'f', |
83 | TRUNCATE_FILE = 'F', | |
84 | CREATE_DIRECTORY = 'd', | |
85 | TRUNCATE_DIRECTORY = 'D', | |
d7b8eec7 | 86 | CREATE_SUBVOLUME = 'v', |
5fb13eb5 LP |
87 | CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
88 | CREATE_SUBVOLUME_NEW_QUOTA = 'Q', | |
ee17ee7c | 89 | CREATE_FIFO = 'p', |
468d726b LP |
90 | CREATE_SYMLINK = 'L', |
91 | CREATE_CHAR_DEVICE = 'c', | |
92 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 93 | COPY_FILES = 'C', |
b8bb3e8f LP |
94 | |
95 | /* These ones take globs */ | |
17493fa5 | 96 | WRITE_FILE = 'w', |
b705ab6a ZJS |
97 | SET_XATTR = 't', |
98 | RECURSIVE_SET_XATTR = 'T', | |
99 | SET_ACL = 'a', | |
100 | RECURSIVE_SET_ACL = 'A', | |
17493fa5 LP |
101 | SET_ATTRIBUTE = 'h', |
102 | RECURSIVE_SET_ATTRIBUTE = 'H', | |
3b63d2d3 | 103 | IGNORE_PATH = 'x', |
78a92a5a | 104 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 105 | REMOVE_PATH = 'r', |
a8d88783 | 106 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 107 | RELABEL_PATH = 'z', |
e73a03e0 | 108 | RECURSIVE_RELABEL_PATH = 'Z', |
17493fa5 | 109 | ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
66ccd038 | 110 | } ItemType; |
3b63d2d3 LP |
111 | |
112 | typedef struct Item { | |
66ccd038 | 113 | ItemType type; |
3b63d2d3 LP |
114 | |
115 | char *path; | |
468d726b | 116 | char *argument; |
ebf4e801 | 117 | char **xattrs; |
f8eeeaf9 ZJS |
118 | #ifdef HAVE_ACL |
119 | acl_t acl_access; | |
120 | acl_t acl_default; | |
121 | #endif | |
5008d581 LP |
122 | uid_t uid; |
123 | gid_t gid; | |
3b63d2d3 LP |
124 | mode_t mode; |
125 | usec_t age; | |
126 | ||
468d726b | 127 | dev_t major_minor; |
88ec4dfa LP |
128 | unsigned attribute_value; |
129 | unsigned attribute_mask; | |
468d726b | 130 | |
3b63d2d3 LP |
131 | bool uid_set:1; |
132 | bool gid_set:1; | |
133 | bool mode_set:1; | |
134 | bool age_set:1; | |
abef3f91 | 135 | bool mask_perms:1; |
88ec4dfa | 136 | bool attribute_set:1; |
24f3a374 LP |
137 | |
138 | bool keep_first_level:1; | |
1910cd0e | 139 | |
2e78fa79 LP |
140 | bool force:1; |
141 | ||
1910cd0e | 142 | bool done:1; |
3b63d2d3 LP |
143 | } Item; |
144 | ||
3f93da98 ZJS |
145 | typedef struct ItemArray { |
146 | Item *items; | |
147 | size_t count; | |
148 | size_t size; | |
149 | } ItemArray; | |
150 | ||
3b63d2d3 LP |
151 | static bool arg_create = false; |
152 | static bool arg_clean = false; | |
153 | static bool arg_remove = false; | |
81815651 | 154 | static bool arg_boot = false; |
3b63d2d3 | 155 | |
7bc040fa LP |
156 | static char **arg_include_prefixes = NULL; |
157 | static char **arg_exclude_prefixes = NULL; | |
cf9a4abd | 158 | static char *arg_root = NULL; |
fba6e687 | 159 | |
75eb6154 | 160 | static const char conf_file_dirs[] = CONF_PATHS_NULSTR("tmpfiles.d"); |
9125670f | 161 | |
3b63d2d3 LP |
162 | #define MAX_DEPTH 256 |
163 | ||
ef43a391 | 164 | static OrderedHashmap *items = NULL, *globs = NULL; |
7bc040fa LP |
165 | static Set *unix_sockets = NULL; |
166 | ||
bd550f78 LP |
167 | static const Specifier specifier_table[] = { |
168 | { 'm', specifier_machine_id, NULL }, | |
169 | { 'b', specifier_boot_id, NULL }, | |
170 | { 'H', specifier_host_name, NULL }, | |
171 | { 'v', specifier_kernel_release, NULL }, | |
172 | {} | |
173 | }; | |
174 | ||
66ccd038 | 175 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
176 | return IN_SET(t, |
177 | WRITE_FILE, | |
178 | IGNORE_PATH, | |
179 | IGNORE_DIRECTORY_PATH, | |
180 | REMOVE_PATH, | |
181 | RECURSIVE_REMOVE_PATH, | |
e73a03e0 | 182 | ADJUST_MODE, |
cde684a2 | 183 | RELABEL_PATH, |
b705ab6a ZJS |
184 | RECURSIVE_RELABEL_PATH, |
185 | SET_XATTR, | |
186 | RECURSIVE_SET_XATTR, | |
187 | SET_ACL, | |
34f64536 LP |
188 | RECURSIVE_SET_ACL, |
189 | SET_ATTRIBUTE, | |
190 | RECURSIVE_SET_ATTRIBUTE); | |
b8bb3e8f LP |
191 | } |
192 | ||
3f93da98 ZJS |
193 | static bool takes_ownership(ItemType t) { |
194 | return IN_SET(t, | |
195 | CREATE_FILE, | |
196 | TRUNCATE_FILE, | |
197 | CREATE_DIRECTORY, | |
198 | TRUNCATE_DIRECTORY, | |
199 | CREATE_SUBVOLUME, | |
5fb13eb5 LP |
200 | CREATE_SUBVOLUME_INHERIT_QUOTA, |
201 | CREATE_SUBVOLUME_NEW_QUOTA, | |
3f93da98 ZJS |
202 | CREATE_FIFO, |
203 | CREATE_SYMLINK, | |
204 | CREATE_CHAR_DEVICE, | |
205 | CREATE_BLOCK_DEVICE, | |
206 | COPY_FILES, | |
3f93da98 ZJS |
207 | WRITE_FILE, |
208 | IGNORE_PATH, | |
209 | IGNORE_DIRECTORY_PATH, | |
210 | REMOVE_PATH, | |
211 | RECURSIVE_REMOVE_PATH); | |
212 | } | |
213 | ||
ef43a391 | 214 | static struct Item* find_glob(OrderedHashmap *h, const char *match) { |
3f93da98 | 215 | ItemArray *j; |
b8bb3e8f LP |
216 | Iterator i; |
217 | ||
ef43a391 | 218 | ORDERED_HASHMAP_FOREACH(j, h, i) { |
3f93da98 ZJS |
219 | unsigned n; |
220 | ||
221 | for (n = 0; n < j->count; n++) { | |
222 | Item *item = j->items + n; | |
223 | ||
224 | if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
225 | return item; | |
226 | } | |
227 | } | |
b8bb3e8f LP |
228 | |
229 | return NULL; | |
230 | } | |
231 | ||
17b90525 | 232 | static void load_unix_sockets(void) { |
7fd1b19b | 233 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
234 | char line[LINE_MAX]; |
235 | ||
236 | if (unix_sockets) | |
237 | return; | |
238 | ||
239 | /* We maintain a cache of the sockets we found in | |
240 | * /proc/net/unix to speed things up a little. */ | |
241 | ||
d5099efc | 242 | unix_sockets = set_new(&string_hash_ops); |
fdcad0c2 | 243 | if (!unix_sockets) |
17b90525 LP |
244 | return; |
245 | ||
fdcad0c2 LP |
246 | f = fopen("/proc/net/unix", "re"); |
247 | if (!f) | |
17b90525 LP |
248 | return; |
249 | ||
fdcad0c2 LP |
250 | /* Skip header */ |
251 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
252 | goto fail; |
253 | ||
254 | for (;;) { | |
255 | char *p, *s; | |
256 | int k; | |
257 | ||
fdcad0c2 | 258 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
259 | break; |
260 | ||
261 | truncate_nl(line); | |
262 | ||
fdcad0c2 LP |
263 | p = strchr(line, ':'); |
264 | if (!p) | |
265 | continue; | |
266 | ||
267 | if (strlen(p) < 37) | |
17b90525 LP |
268 | continue; |
269 | ||
fdcad0c2 | 270 | p += 37; |
17b90525 | 271 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 272 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
273 | p += strspn(p, WHITESPACE); |
274 | ||
275 | if (*p != '/') | |
276 | continue; | |
277 | ||
fdcad0c2 LP |
278 | s = strdup(p); |
279 | if (!s) | |
17b90525 LP |
280 | goto fail; |
281 | ||
4ff21d85 LP |
282 | path_kill_slashes(s); |
283 | ||
ef42202a ZJS |
284 | k = set_consume(unix_sockets, s); |
285 | if (k < 0 && k != -EEXIST) | |
286 | goto fail; | |
17b90525 LP |
287 | } |
288 | ||
289 | return; | |
290 | ||
291 | fail: | |
292 | set_free_free(unix_sockets); | |
293 | unix_sockets = NULL; | |
17b90525 LP |
294 | } |
295 | ||
296 | static bool unix_socket_alive(const char *fn) { | |
297 | assert(fn); | |
298 | ||
299 | load_unix_sockets(); | |
300 | ||
301 | if (unix_sockets) | |
302 | return !!set_get(unix_sockets, (char*) fn); | |
303 | ||
304 | /* We don't know, so assume yes */ | |
305 | return true; | |
306 | } | |
307 | ||
99d680ac | 308 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 | 309 | |
2695c5c4 | 310 | union file_handle_union h = FILE_HANDLE_INIT; |
99d680ac KS |
311 | int mount_id_parent, mount_id; |
312 | int r_p, r; | |
313 | ||
370c860f | 314 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
315 | if (r_p < 0) |
316 | r_p = -errno; | |
317 | ||
370c860f DR |
318 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
319 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
320 | if (r < 0) |
321 | r = -errno; | |
322 | ||
323 | /* got no handle; make no assumptions, return error */ | |
324 | if (r_p < 0 && r < 0) | |
325 | return r_p; | |
326 | ||
327 | /* got both handles; if they differ, it is a mount point */ | |
328 | if (r_p >= 0 && r >= 0) | |
329 | return mount_id_parent != mount_id; | |
330 | ||
331 | /* got only one handle; assume different mount points if one | |
332 | * of both queries was not supported by the filesystem */ | |
e7aab541 | 333 | if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) |
99d680ac KS |
334 | return true; |
335 | ||
336 | /* return error */ | |
337 | if (r_p < 0) | |
338 | return r_p; | |
339 | return r; | |
340 | } | |
341 | ||
df99a9ef ZJS |
342 | static DIR* xopendirat_nomod(int dirfd, const char *path) { |
343 | DIR *dir; | |
344 | ||
345 | dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); | |
1532227a LP |
346 | if (dir) |
347 | return dir; | |
348 | ||
349 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
350 | if (errno != EPERM) | |
351 | return NULL; | |
352 | ||
353 | dir = xopendirat(dirfd, path, O_NOFOLLOW); | |
354 | if (!dir) | |
355 | log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); | |
df99a9ef ZJS |
356 | |
357 | return dir; | |
358 | } | |
359 | ||
360 | static DIR* opendir_nomod(const char *path) { | |
361 | return xopendirat_nomod(AT_FDCWD, path); | |
362 | } | |
363 | ||
3b63d2d3 | 364 | static int dir_cleanup( |
78a92a5a | 365 | Item *i, |
3b63d2d3 LP |
366 | const char *p, |
367 | DIR *d, | |
368 | const struct stat *ds, | |
369 | usec_t cutoff, | |
370 | dev_t rootdev, | |
371 | bool mountpoint, | |
24f3a374 | 372 | int maxdepth, |
265ffa1e LP |
373 | bool keep_this_level) { |
374 | ||
3b63d2d3 LP |
375 | struct dirent *dent; |
376 | struct timespec times[2]; | |
377 | bool deleted = false; | |
3b63d2d3 LP |
378 | int r = 0; |
379 | ||
380 | while ((dent = readdir(d))) { | |
381 | struct stat s; | |
382 | usec_t age; | |
7fd1b19b | 383 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 | 384 | |
7fcb4b9b | 385 | if (STR_IN_SET(dent->d_name, ".", "..")) |
3b63d2d3 | 386 | continue; |
5008d581 | 387 | |
3b63d2d3 | 388 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
389 | if (errno == ENOENT) |
390 | continue; | |
5008d581 | 391 | |
ca2f4176 KS |
392 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
393 | if (errno == EACCES) | |
56f64d95 | 394 | log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 395 | else |
56f64d95 | 396 | log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 397 | r = -errno; |
3b63d2d3 LP |
398 | continue; |
399 | } | |
400 | ||
401 | /* Stay on the same filesystem */ | |
582deb84 ZJS |
402 | if (s.st_dev != rootdev) { |
403 | log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); | |
3b63d2d3 | 404 | continue; |
582deb84 | 405 | } |
3b63d2d3 | 406 | |
99d680ac KS |
407 | /* Try to detect bind mounts of the same filesystem instance; they |
408 | * do not differ in device major/minors. This type of query is not | |
409 | * supported on all kernels or filesystem types though. */ | |
582deb84 ZJS |
410 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
411 | log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", | |
412 | p, dent->d_name); | |
99d680ac | 413 | continue; |
582deb84 | 414 | } |
99d680ac | 415 | |
3b63d2d3 | 416 | /* Do not delete read-only files owned by root */ |
582deb84 ZJS |
417 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { |
418 | log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); | |
3b63d2d3 | 419 | continue; |
582deb84 | 420 | } |
3b63d2d3 | 421 | |
cde684a2 LP |
422 | sub_path = strjoin(p, "/", dent->d_name, NULL); |
423 | if (!sub_path) { | |
0d0f0c50 | 424 | r = log_oom(); |
3b63d2d3 LP |
425 | goto finish; |
426 | } | |
427 | ||
428 | /* Is there an item configured for this path? */ | |
ef43a391 | 429 | if (ordered_hashmap_get(items, sub_path)) { |
582deb84 | 430 | log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
3b63d2d3 | 431 | continue; |
582deb84 | 432 | } |
3b63d2d3 | 433 | |
582deb84 ZJS |
434 | if (find_glob(globs, sub_path)) { |
435 | log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); | |
b8bb3e8f | 436 | continue; |
582deb84 | 437 | } |
b8bb3e8f | 438 | |
3b63d2d3 LP |
439 | if (S_ISDIR(s.st_mode)) { |
440 | ||
441 | if (mountpoint && | |
442 | streq(dent->d_name, "lost+found") && | |
582deb84 ZJS |
443 | s.st_uid == 0) { |
444 | log_debug("Ignoring \"%s\".", sub_path); | |
3b63d2d3 | 445 | continue; |
582deb84 | 446 | } |
3b63d2d3 LP |
447 | |
448 | if (maxdepth <= 0) | |
582deb84 | 449 | log_warning("Reached max depth on \"%s\".", sub_path); |
3b63d2d3 | 450 | else { |
7fd1b19b | 451 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
452 | int q; |
453 | ||
df99a9ef | 454 | sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
cde684a2 | 455 | if (!sub_dir) { |
582deb84 ZJS |
456 | if (errno != ENOENT) |
457 | r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); | |
3b63d2d3 LP |
458 | |
459 | continue; | |
460 | } | |
461 | ||
78a92a5a | 462 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
463 | if (q < 0) |
464 | r = q; | |
465 | } | |
466 | ||
24f3a374 LP |
467 | /* Note: if you are wondering why we don't |
468 | * support the sticky bit for excluding | |
469 | * directories from cleaning like we do it for | |
470 | * other file system objects: well, the sticky | |
471 | * bit already has a meaning for directories, | |
472 | * so we don't want to overload that. */ | |
473 | ||
582deb84 ZJS |
474 | if (keep_this_level) { |
475 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 476 | continue; |
582deb84 | 477 | } |
24f3a374 | 478 | |
3b63d2d3 | 479 | /* Ignore ctime, we change it when deleting */ |
582deb84 ZJS |
480 | age = timespec_load(&s.st_mtim); |
481 | if (age >= cutoff) { | |
482 | char a[FORMAT_TIMESTAMP_MAX]; | |
483 | /* Follows spelling in stat(1). */ | |
484 | log_debug("Directory \"%s\": modify time %s is too new.", | |
485 | sub_path, | |
486 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 487 | continue; |
582deb84 ZJS |
488 | } |
489 | ||
490 | age = timespec_load(&s.st_atim); | |
491 | if (age >= cutoff) { | |
492 | char a[FORMAT_TIMESTAMP_MAX]; | |
493 | log_debug("Directory \"%s\": access time %s is too new.", | |
494 | sub_path, | |
495 | format_timestamp_us(a, sizeof(a), age)); | |
496 | continue; | |
497 | } | |
3b63d2d3 | 498 | |
61253220 ZJS |
499 | log_debug("Removing directory \"%s\".", sub_path); |
500 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) | |
501 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
502 | log_error_errno(errno, "rmdir(%s): %m", sub_path); | |
503 | r = -errno; | |
3b63d2d3 | 504 | } |
3b63d2d3 LP |
505 | |
506 | } else { | |
9c73736d LP |
507 | /* Skip files for which the sticky bit is |
508 | * set. These are semantics we define, and are | |
509 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
510 | * specification for details. */ | |
582deb84 ZJS |
511 | if (s.st_mode & S_ISVTX) { |
512 | log_debug("Skipping \"%s\": sticky bit set.", sub_path); | |
9c73736d | 513 | continue; |
582deb84 | 514 | } |
9c73736d | 515 | |
582deb84 | 516 | if (mountpoint && S_ISREG(s.st_mode)) |
1542c01b ZJS |
517 | if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
518 | ".journal", | |
519 | "aquota.user", | |
520 | "aquota.group")) { | |
582deb84 | 521 | log_debug("Skipping \"%s\".", sub_path); |
3b63d2d3 | 522 | continue; |
582deb84 | 523 | } |
3b63d2d3 | 524 | |
17b90525 | 525 | /* Ignore sockets that are listed in /proc/net/unix */ |
582deb84 ZJS |
526 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
527 | log_debug("Skipping \"%s\": live socket.", sub_path); | |
17b90525 | 528 | continue; |
582deb84 | 529 | } |
17b90525 | 530 | |
78ab08eb | 531 | /* Ignore device nodes */ |
582deb84 ZJS |
532 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
533 | log_debug("Skipping \"%s\": a device.", sub_path); | |
78ab08eb | 534 | continue; |
582deb84 | 535 | } |
78ab08eb | 536 | |
24f3a374 LP |
537 | /* Keep files on this level around if this is |
538 | * requested */ | |
582deb84 ZJS |
539 | if (keep_this_level) { |
540 | log_debug("Keeping \"%s\".", sub_path); | |
24f3a374 | 541 | continue; |
582deb84 | 542 | } |
24f3a374 | 543 | |
582deb84 ZJS |
544 | age = timespec_load(&s.st_mtim); |
545 | if (age >= cutoff) { | |
546 | char a[FORMAT_TIMESTAMP_MAX]; | |
547 | /* Follows spelling in stat(1). */ | |
548 | log_debug("File \"%s\": modify time %s is too new.", | |
549 | sub_path, | |
550 | format_timestamp_us(a, sizeof(a), age)); | |
3b63d2d3 | 551 | continue; |
582deb84 | 552 | } |
3b63d2d3 | 553 | |
582deb84 ZJS |
554 | age = timespec_load(&s.st_atim); |
555 | if (age >= cutoff) { | |
556 | char a[FORMAT_TIMESTAMP_MAX]; | |
557 | log_debug("File \"%s\": access time %s is too new.", | |
558 | sub_path, | |
559 | format_timestamp_us(a, sizeof(a), age)); | |
560 | continue; | |
561 | } | |
3b63d2d3 | 562 | |
582deb84 ZJS |
563 | age = timespec_load(&s.st_ctim); |
564 | if (age >= cutoff) { | |
565 | char a[FORMAT_TIMESTAMP_MAX]; | |
566 | log_debug("File \"%s\": change time %s is too new.", | |
567 | sub_path, | |
568 | format_timestamp_us(a, sizeof(a), age)); | |
569 | continue; | |
3b63d2d3 LP |
570 | } |
571 | ||
582deb84 ZJS |
572 | log_debug("unlink \"%s\"", sub_path); |
573 | ||
574 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) | |
575 | if (errno != ENOENT) | |
576 | r = log_error_errno(errno, "unlink(%s): %m", sub_path); | |
577 | ||
3b63d2d3 LP |
578 | deleted = true; |
579 | } | |
580 | } | |
581 | ||
582 | finish: | |
583 | if (deleted) { | |
582deb84 ZJS |
584 | usec_t age1, age2; |
585 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
586 | ||
3b63d2d3 LP |
587 | /* Restore original directory timestamps */ |
588 | times[0] = ds->st_atim; | |
589 | times[1] = ds->st_mtim; | |
590 | ||
582deb84 ZJS |
591 | age1 = timespec_load(&ds->st_atim); |
592 | age2 = timespec_load(&ds->st_mtim); | |
593 | log_debug("Restoring access and modification time on \"%s\": %s, %s", | |
594 | p, | |
595 | format_timestamp_us(a, sizeof(a), age1), | |
596 | format_timestamp_us(b, sizeof(b), age2)); | |
3b63d2d3 | 597 | if (futimens(dirfd(d), times) < 0) |
56f64d95 | 598 | log_error_errno(errno, "utimensat(%s): %m", p); |
3b63d2d3 LP |
599 | } |
600 | ||
3b63d2d3 LP |
601 | return r; |
602 | } | |
603 | ||
b705ab6a | 604 | static int path_set_perms(Item *i, const char *path) { |
48b8aaa8 | 605 | _cleanup_close_ int fd = -1; |
1924a97d | 606 | struct stat st; |
1924a97d | 607 | |
cde684a2 LP |
608 | assert(i); |
609 | assert(path); | |
610 | ||
48b8aaa8 LP |
611 | /* We open the file with O_PATH here, to make the operation |
612 | * somewhat atomic. Also there's unfortunately no fchmodat() | |
613 | * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via | |
614 | * O_PATH. */ | |
615 | ||
c4b69156 | 616 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); |
48b8aaa8 LP |
617 | if (fd < 0) |
618 | return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path); | |
619 | ||
620 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
621 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
1924a97d | 622 | |
48b8aaa8 LP |
623 | if (S_ISLNK(st.st_mode)) |
624 | log_debug("Skipping mode an owner fix for symlink %s.", path); | |
625 | else { | |
626 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; | |
627 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
abef3f91 | 628 | |
48b8aaa8 LP |
629 | /* not using i->path directly because it may be a glob */ |
630 | if (i->mode_set) { | |
631 | mode_t m = i->mode; | |
632 | ||
633 | if (i->mask_perms) { | |
634 | if (!(st.st_mode & 0111)) | |
635 | m &= ~0111; | |
636 | if (!(st.st_mode & 0222)) | |
7d6884b6 | 637 | m &= ~0222; |
48b8aaa8 LP |
638 | if (!(st.st_mode & 0444)) |
639 | m &= ~0444; | |
640 | if (!S_ISDIR(st.st_mode)) | |
641 | m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ | |
642 | } | |
abef3f91 | 643 | |
48b8aaa8 LP |
644 | if (m == (st.st_mode & 07777)) |
645 | log_debug("\"%s\" has right mode %o", path, st.st_mode); | |
646 | else { | |
647 | log_debug("chmod \"%s\" to mode %o", path, m); | |
648 | if (chmod(fn, m) < 0) | |
649 | return log_error_errno(errno, "chmod(%s) failed: %m", path); | |
650 | } | |
062e01bb | 651 | } |
062e01bb | 652 | |
48b8aaa8 LP |
653 | if ((i->uid != st.st_uid || i->gid != st.st_gid) && |
654 | (i->uid_set || i->gid_set)) { | |
655 | log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, | |
656 | path, | |
657 | i->uid_set ? i->uid : UID_INVALID, | |
658 | i->gid_set ? i->gid : GID_INVALID); | |
659 | if (chown(fn, | |
660 | i->uid_set ? i->uid : UID_INVALID, | |
661 | i->gid_set ? i->gid : GID_INVALID) < 0) | |
7d6884b6 | 662 | return log_error_errno(errno, "chown(%s) failed: %m", path); |
48b8aaa8 | 663 | } |
582deb84 | 664 | } |
062e01bb | 665 | |
48b8aaa8 LP |
666 | fd = safe_close(fd); |
667 | ||
9855d6c7 | 668 | return label_fix(path, false, false); |
062e01bb MS |
669 | } |
670 | ||
bd550f78 | 671 | static int parse_xattrs_from_arg(Item *i) { |
ebf4e801 MW |
672 | const char *p; |
673 | int r; | |
674 | ||
675 | assert(i); | |
505ef0e3 | 676 | assert(i->argument); |
ebf4e801 | 677 | |
ebf4e801 MW |
678 | p = i->argument; |
679 | ||
4034a06d | 680 | for (;;) { |
bd550f78 | 681 | _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; |
4034a06d | 682 | |
12ba2c44 | 683 | r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
4034a06d | 684 | if (r < 0) |
bd550f78 | 685 | log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
4034a06d LP |
686 | if (r <= 0) |
687 | break; | |
505ef0e3 | 688 | |
bd550f78 LP |
689 | r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); |
690 | if (r < 0) | |
691 | return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); | |
692 | ||
693 | r = split_pair(xattr_replaced, "=", &name, &value); | |
ebf4e801 | 694 | if (r < 0) { |
4034a06d | 695 | log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
ebf4e801 MW |
696 | continue; |
697 | } | |
505ef0e3 | 698 | |
4034a06d | 699 | if (isempty(name) || isempty(value)) { |
bd550f78 | 700 | log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
ebf4e801 MW |
701 | continue; |
702 | } | |
505ef0e3 | 703 | |
4034a06d | 704 | if (strv_push_pair(&i->xattrs, name, value) < 0) |
ebf4e801 | 705 | return log_oom(); |
505ef0e3 | 706 | |
4034a06d | 707 | name = value = NULL; |
ebf4e801 MW |
708 | } |
709 | ||
4034a06d | 710 | return 0; |
ebf4e801 MW |
711 | } |
712 | ||
b705ab6a | 713 | static int path_set_xattrs(Item *i, const char *path) { |
ebf4e801 MW |
714 | char **name, **value; |
715 | ||
716 | assert(i); | |
717 | assert(path); | |
718 | ||
ebf4e801 MW |
719 | STRV_FOREACH_PAIR(name, value, i->xattrs) { |
720 | int n; | |
505ef0e3 | 721 | |
ebf4e801 | 722 | n = strlen(*value); |
bd550f78 | 723 | log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
ebf4e801 | 724 | if (lsetxattr(path, *name, *value, n, 0) < 0) { |
bd550f78 | 725 | log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path); |
ebf4e801 MW |
726 | return -errno; |
727 | } | |
728 | } | |
729 | return 0; | |
730 | } | |
731 | ||
bd550f78 | 732 | static int parse_acls_from_arg(Item *item) { |
f8eeeaf9 ZJS |
733 | #ifdef HAVE_ACL |
734 | int r; | |
f8eeeaf9 ZJS |
735 | |
736 | assert(item); | |
737 | ||
50d9e46d ZJS |
738 | /* If force (= modify) is set, we will not modify the acl |
739 | * afterwards, so the mask can be added now if necessary. */ | |
bd550f78 | 740 | |
50d9e46d | 741 | r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); |
f8eeeaf9 | 742 | if (r < 0) |
4034a06d | 743 | log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
f8eeeaf9 ZJS |
744 | #else |
745 | log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); | |
746 | #endif | |
747 | ||
748 | return 0; | |
749 | } | |
750 | ||
35888b67 | 751 | #ifdef HAVE_ACL |
48b8aaa8 LP |
752 | static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
753 | _cleanup_(acl_free_charpp) char *t = NULL; | |
dd4105b0 | 754 | _cleanup_(acl_freep) acl_t dup = NULL; |
50d9e46d ZJS |
755 | int r; |
756 | ||
d873e877 HPD |
757 | /* Returns 0 for success, positive error if already warned, |
758 | * negative error otherwise. */ | |
759 | ||
50d9e46d | 760 | if (modify) { |
dd4105b0 | 761 | r = acls_for_file(path, type, acl, &dup); |
50d9e46d ZJS |
762 | if (r < 0) |
763 | return r; | |
50d9e46d | 764 | |
dd4105b0 ZJS |
765 | r = calc_acl_mask_if_needed(&dup); |
766 | if (r < 0) | |
767 | return r; | |
768 | } else { | |
769 | dup = acl_dup(acl); | |
770 | if (!dup) | |
771 | return -errno; | |
772 | ||
773 | /* the mask was already added earlier if needed */ | |
774 | } | |
775 | ||
776 | r = add_base_acls_if_needed(&dup, path); | |
777 | if (r < 0) | |
778 | return r; | |
779 | ||
582deb84 | 780 | t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
48b8aaa8 | 781 | log_debug("Setting %s ACL %s on %s.", |
582deb84 | 782 | type == ACL_TYPE_ACCESS ? "access" : "default", |
48b8aaa8 | 783 | strna(t), pretty); |
50d9e46d | 784 | |
582deb84 ZJS |
785 | r = acl_set_file(path, type, dup); |
786 | if (r < 0) | |
3ea40b78 LP |
787 | /* Return positive to indicate we already warned */ |
788 | return -log_error_errno(errno, | |
789 | "Setting %s ACL \"%s\" on %s failed: %m", | |
790 | type == ACL_TYPE_ACCESS ? "access" : "default", | |
48b8aaa8 | 791 | strna(t), pretty); |
d873e877 | 792 | |
582deb84 | 793 | return 0; |
50d9e46d | 794 | } |
35888b67 | 795 | #endif |
50d9e46d | 796 | |
b705ab6a | 797 | static int path_set_acls(Item *item, const char *path) { |
d873e877 | 798 | int r = 0; |
f8eeeaf9 | 799 | #ifdef HAVE_ACL |
48b8aaa8 LP |
800 | char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
801 | _cleanup_close_ int fd = -1; | |
802 | struct stat st; | |
803 | ||
f8eeeaf9 ZJS |
804 | assert(item); |
805 | assert(path); | |
806 | ||
c4b69156 | 807 | fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); |
48b8aaa8 LP |
808 | if (fd < 0) |
809 | return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); | |
810 | ||
811 | if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) | |
812 | return log_error_errno(errno, "Failed to fstat() file %s: %m", path); | |
813 | ||
814 | if (S_ISLNK(st.st_mode)) { | |
815 | log_debug("Skipping ACL fix for symlink %s.", path); | |
816 | return 0; | |
817 | } | |
818 | ||
819 | xsprintf(fn, "/proc/self/fd/%i", fd); | |
820 | ||
d873e877 | 821 | if (item->acl_access) |
48b8aaa8 | 822 | r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
f8eeeaf9 | 823 | |
d873e877 | 824 | if (r == 0 && item->acl_default) |
48b8aaa8 | 825 | r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
f8eeeaf9 | 826 | |
d873e877 HPD |
827 | if (r > 0) |
828 | return -r; /* already warned */ | |
15411c0c | 829 | else if (r == -EOPNOTSUPP) { |
d873e877 HPD |
830 | log_debug_errno(r, "ACLs not supported by file system at %s", path); |
831 | return 0; | |
832 | } else if (r < 0) | |
833 | log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); | |
834 | #endif | |
835 | return r; | |
f8eeeaf9 ZJS |
836 | } |
837 | ||
88ec4dfa LP |
838 | #define ATTRIBUTES_ALL \ |
839 | (FS_NOATIME_FL | \ | |
840 | FS_SYNC_FL | \ | |
841 | FS_DIRSYNC_FL | \ | |
842 | FS_APPEND_FL | \ | |
843 | FS_COMPR_FL | \ | |
844 | FS_NODUMP_FL | \ | |
845 | FS_EXTENT_FL | \ | |
846 | FS_IMMUTABLE_FL | \ | |
847 | FS_JOURNAL_DATA_FL | \ | |
848 | FS_SECRM_FL | \ | |
849 | FS_UNRM_FL | \ | |
850 | FS_NOTAIL_FL | \ | |
851 | FS_TOPDIR_FL | \ | |
852 | FS_NOCOW_FL) | |
853 | ||
bd550f78 | 854 | static int parse_attribute_from_arg(Item *item) { |
88ec4dfa LP |
855 | |
856 | static const struct { | |
857 | char character; | |
858 | unsigned value; | |
859 | } attributes[] = { | |
860 | { 'A', FS_NOATIME_FL }, /* do not update atime */ | |
861 | { 'S', FS_SYNC_FL }, /* Synchronous updates */ | |
862 | { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ | |
863 | { 'a', FS_APPEND_FL }, /* writes to file may only append */ | |
864 | { 'c', FS_COMPR_FL }, /* Compress file */ | |
865 | { 'd', FS_NODUMP_FL }, /* do not dump file */ | |
866 | { 'e', FS_EXTENT_FL }, /* Top of directory hierarchies*/ | |
867 | { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ | |
868 | { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ | |
869 | { 's', FS_SECRM_FL }, /* Secure deletion */ | |
870 | { 'u', FS_UNRM_FL }, /* Undelete */ | |
871 | { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ | |
872 | { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/ | |
873 | { 'C', FS_NOCOW_FL }, /* Do not cow file */ | |
22c3a6ca | 874 | }; |
88ec4dfa | 875 | |
22c3a6ca GB |
876 | enum { |
877 | MODE_ADD, | |
878 | MODE_DEL, | |
879 | MODE_SET | |
880 | } mode = MODE_ADD; | |
22c3a6ca | 881 | |
88ec4dfa LP |
882 | unsigned value = 0, mask = 0; |
883 | const char *p; | |
22c3a6ca | 884 | |
88ec4dfa LP |
885 | assert(item); |
886 | ||
887 | p = item->argument; | |
888 | if (p) { | |
889 | if (*p == '+') { | |
890 | mode = MODE_ADD; | |
891 | p++; | |
892 | } else if (*p == '-') { | |
893 | mode = MODE_DEL; | |
894 | p++; | |
895 | } else if (*p == '=') { | |
896 | mode = MODE_SET; | |
897 | p++; | |
898 | } | |
22c3a6ca GB |
899 | } |
900 | ||
88ec4dfa LP |
901 | if (isempty(p) && mode != MODE_SET) { |
902 | log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); | |
22c3a6ca GB |
903 | return -EINVAL; |
904 | } | |
88ec4dfa LP |
905 | |
906 | for (; p && *p ; p++) { | |
907 | unsigned i, v; | |
908 | ||
909 | for (i = 0; i < ELEMENTSOF(attributes); i++) | |
910 | if (*p == attributes[i].character) | |
911 | break; | |
912 | ||
913 | if (i >= ELEMENTSOF(attributes)) { | |
914 | log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); | |
22c3a6ca GB |
915 | return -EINVAL; |
916 | } | |
88ec4dfa LP |
917 | |
918 | v = attributes[i].value; | |
919 | ||
5883ff60 | 920 | SET_FLAG(value, v, (mode == MODE_ADD || mode == MODE_SET)); |
88ec4dfa LP |
921 | |
922 | mask |= v; | |
22c3a6ca GB |
923 | } |
924 | ||
925 | if (mode == MODE_SET) | |
88ec4dfa | 926 | mask |= ATTRIBUTES_ALL; |
22c3a6ca | 927 | |
88ec4dfa | 928 | assert(mask != 0); |
22c3a6ca | 929 | |
88ec4dfa LP |
930 | item->attribute_mask = mask; |
931 | item->attribute_value = value; | |
932 | item->attribute_set = true; | |
22c3a6ca GB |
933 | |
934 | return 0; | |
22c3a6ca GB |
935 | } |
936 | ||
88ec4dfa | 937 | static int path_set_attribute(Item *item, const char *path) { |
22c3a6ca | 938 | _cleanup_close_ int fd = -1; |
22c3a6ca | 939 | struct stat st; |
88ec4dfa LP |
940 | unsigned f; |
941 | int r; | |
22c3a6ca | 942 | |
88ec4dfa | 943 | if (!item->attribute_set || item->attribute_mask == 0) |
22c3a6ca | 944 | return 0; |
22c3a6ca | 945 | |
48b8aaa8 LP |
946 | fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); |
947 | if (fd < 0) { | |
948 | if (errno == ELOOP) | |
949 | return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); | |
950 | ||
88ec4dfa | 951 | return log_error_errno(errno, "Cannot open '%s': %m", path); |
48b8aaa8 | 952 | } |
22c3a6ca | 953 | |
88ec4dfa LP |
954 | if (fstat(fd, &st) < 0) |
955 | return log_error_errno(errno, "Cannot stat '%s': %m", path); | |
956 | ||
957 | /* Issuing the file attribute ioctls on device nodes is not | |
958 | * safe, as that will be delivered to the drivers, not the | |
959 | * file system containing the device node. */ | |
960 | if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { | |
961 | log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); | |
962 | return -EINVAL; | |
963 | } | |
964 | ||
965 | f = item->attribute_value & item->attribute_mask; | |
966 | ||
967 | /* Mask away directory-specific flags */ | |
22c3a6ca GB |
968 | if (!S_ISDIR(st.st_mode)) |
969 | f &= ~FS_DIRSYNC_FL; | |
88ec4dfa LP |
970 | |
971 | r = chattr_fd(fd, f, item->attribute_mask); | |
22c3a6ca | 972 | if (r < 0) |
ad75a97f LP |
973 | log_full_errno(r == -ENOTTY ? LOG_DEBUG : LOG_WARNING, |
974 | r, | |
975 | "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", | |
976 | path, item->attribute_value, item->attribute_mask); | |
22c3a6ca GB |
977 | |
978 | return 0; | |
979 | } | |
980 | ||
d4e9eb91 | 981 | static int write_one_file(Item *i, const char *path) { |
43ad6e31 LP |
982 | _cleanup_close_ int fd = -1; |
983 | int flags, r = 0; | |
d4e9eb91 | 984 | struct stat st; |
d4e9eb91 | 985 | |
874f1947 LP |
986 | assert(i); |
987 | assert(path); | |
988 | ||
43ad6e31 LP |
989 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
990 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; | |
d4e9eb91 | 991 | |
43ad6e31 | 992 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 993 | mac_selinux_create_file_prepare(path, S_IFREG); |
43ad6e31 | 994 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
ecabcf8b | 995 | mac_selinux_create_file_clear(); |
5c0d398d | 996 | } |
d4e9eb91 DR |
997 | |
998 | if (fd < 0) { | |
582deb84 ZJS |
999 | if (i->type == WRITE_FILE && errno == ENOENT) { |
1000 | log_debug_errno(errno, "Not writing \"%s\": %m", path); | |
d4e9eb91 | 1001 | return 0; |
582deb84 | 1002 | } |
d4e9eb91 | 1003 | |
f44b28fd MO |
1004 | r = -errno; |
1005 | if (!i->argument && errno == EROFS && stat(path, &st) == 0 && | |
1006 | (i->type == CREATE_FILE || st.st_size == 0)) | |
1007 | goto check_mode; | |
1008 | ||
1009 | return log_error_errno(r, "Failed to create file %s: %m", path); | |
d4e9eb91 DR |
1010 | } |
1011 | ||
1012 | if (i->argument) { | |
bd550f78 | 1013 | _cleanup_free_ char *unescaped = NULL, *replaced = NULL; |
582deb84 | 1014 | |
4034a06d | 1015 | log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
d4e9eb91 | 1016 | |
527b7a42 LP |
1017 | r = cunescape(i->argument, 0, &unescaped); |
1018 | if (r < 0) | |
1019 | return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); | |
d4e9eb91 | 1020 | |
bd550f78 LP |
1021 | r = specifier_printf(unescaped, specifier_table, NULL, &replaced); |
1022 | if (r < 0) | |
1023 | return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); | |
1024 | ||
1025 | r = loop_write(fd, replaced, strlen(replaced), false); | |
582deb84 ZJS |
1026 | if (r < 0) |
1027 | return log_error_errno(r, "Failed to write file \"%s\": %m", path); | |
1028 | } else | |
1029 | log_debug("\"%s\" has been created.", path); | |
d4e9eb91 | 1030 | |
43ad6e31 | 1031 | fd = safe_close(fd); |
3612fbc1 | 1032 | |
4a62c710 MS |
1033 | if (stat(path, &st) < 0) |
1034 | return log_error_errno(errno, "stat(%s) failed: %m", path); | |
d4e9eb91 | 1035 | |
f44b28fd | 1036 | check_mode: |
d4e9eb91 DR |
1037 | if (!S_ISREG(st.st_mode)) { |
1038 | log_error("%s is not a file.", path); | |
1039 | return -EEXIST; | |
1040 | } | |
1041 | ||
b705ab6a | 1042 | r = path_set_perms(i, path); |
d4e9eb91 DR |
1043 | if (r < 0) |
1044 | return r; | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
081043cf ZJS |
1049 | typedef int (*action_t)(Item *, const char *); |
1050 | ||
1051 | static int item_do_children(Item *i, const char *path, action_t action) { | |
7fd1b19b | 1052 | _cleanup_closedir_ DIR *d; |
e73a03e0 LP |
1053 | int r = 0; |
1054 | ||
1055 | assert(i); | |
1056 | assert(path); | |
a8d88783 MS |
1057 | |
1058 | /* This returns the first error we run into, but nevertheless | |
1059 | * tries to go on */ | |
1060 | ||
df99a9ef ZJS |
1061 | d = opendir_nomod(path); |
1062 | if (!d) | |
e73a03e0 | 1063 | return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; |
a8d88783 MS |
1064 | |
1065 | for (;;) { | |
e73a03e0 | 1066 | _cleanup_free_ char *p = NULL; |
7d5e9c0f | 1067 | struct dirent *de; |
e73a03e0 | 1068 | int q; |
a8d88783 | 1069 | |
d78096b3 FW |
1070 | errno = 0; |
1071 | de = readdir(d); | |
e73a03e0 | 1072 | if (!de) { |
b3267152 | 1073 | if (errno > 0 && r == 0) |
e73a03e0 | 1074 | r = -errno; |
a8d88783 | 1075 | |
a8d88783 | 1076 | break; |
e73a03e0 | 1077 | } |
a8d88783 | 1078 | |
7fcb4b9b | 1079 | if (STR_IN_SET(de->d_name, ".", "..")) |
a8d88783 MS |
1080 | continue; |
1081 | ||
e73a03e0 LP |
1082 | p = strjoin(path, "/", de->d_name, NULL); |
1083 | if (!p) | |
1084 | return -ENOMEM; | |
a8d88783 | 1085 | |
081043cf | 1086 | q = action(i, p); |
e73a03e0 LP |
1087 | if (q < 0 && q != -ENOENT && r == 0) |
1088 | r = q; | |
a8d88783 | 1089 | |
e73a03e0 | 1090 | if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { |
081043cf | 1091 | q = item_do_children(i, p, action); |
e73a03e0 LP |
1092 | if (q < 0 && r == 0) |
1093 | r = q; | |
a8d88783 | 1094 | } |
a8d88783 MS |
1095 | } |
1096 | ||
e73a03e0 | 1097 | return r; |
a8d88783 MS |
1098 | } |
1099 | ||
081043cf | 1100 | static int glob_item(Item *i, action_t action, bool recursive) { |
df99a9ef | 1101 | _cleanup_globfree_ glob_t g = { |
ebf31a1f ZJS |
1102 | .gl_closedir = (void (*)(void *)) closedir, |
1103 | .gl_readdir = (struct dirent *(*)(void *)) readdir, | |
1104 | .gl_opendir = (void *(*)(const char *)) opendir_nomod, | |
df99a9ef ZJS |
1105 | .gl_lstat = lstat, |
1106 | .gl_stat = stat, | |
1107 | }; | |
e73a03e0 | 1108 | int r = 0, k; |
99e68c0b MS |
1109 | char **fn; |
1110 | ||
99e68c0b | 1111 | errno = 0; |
df99a9ef | 1112 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g); |
081043cf ZJS |
1113 | if (k != 0 && k != GLOB_NOMATCH) |
1114 | return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path); | |
99e68c0b | 1115 | |
c84a9488 ZJS |
1116 | STRV_FOREACH(fn, g.gl_pathv) { |
1117 | k = action(i, *fn); | |
e73a03e0 | 1118 | if (k < 0 && r == 0) |
99e68c0b | 1119 | r = k; |
081043cf ZJS |
1120 | |
1121 | if (recursive) { | |
1122 | k = item_do_children(i, *fn, action); | |
1123 | if (k < 0 && r == 0) | |
1124 | r = k; | |
1125 | } | |
c84a9488 | 1126 | } |
99e68c0b | 1127 | |
99e68c0b MS |
1128 | return r; |
1129 | } | |
1130 | ||
294929f8 ZJS |
1131 | typedef enum { |
1132 | CREATION_NORMAL, | |
1133 | CREATION_EXISTING, | |
1134 | CREATION_FORCE, | |
7a7d5db7 LP |
1135 | _CREATION_MODE_MAX, |
1136 | _CREATION_MODE_INVALID = -1 | |
294929f8 ZJS |
1137 | } CreationMode; |
1138 | ||
7a7d5db7 LP |
1139 | static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
1140 | [CREATION_NORMAL] = "Created", | |
1141 | [CREATION_EXISTING] = "Found existing", | |
1142 | [CREATION_FORCE] = "Created replacement", | |
1143 | }; | |
1144 | ||
1145 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); | |
294929f8 | 1146 | |
3b63d2d3 | 1147 | static int create_item(Item *i) { |
75c2a9fd | 1148 | _cleanup_free_ char *resolved = NULL; |
3b63d2d3 | 1149 | struct stat st; |
df28bc08 | 1150 | int r = 0; |
114a17d2 | 1151 | int q = 0; |
294929f8 | 1152 | CreationMode creation; |
5008d581 | 1153 | |
3b63d2d3 | 1154 | assert(i); |
5008d581 | 1155 | |
582deb84 ZJS |
1156 | log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
1157 | ||
3b63d2d3 LP |
1158 | switch (i->type) { |
1159 | ||
1160 | case IGNORE_PATH: | |
78a92a5a | 1161 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
1162 | case REMOVE_PATH: |
1163 | case RECURSIVE_REMOVE_PATH: | |
1164 | return 0; | |
5008d581 | 1165 | |
3b63d2d3 | 1166 | case CREATE_FILE: |
31ed59c5 | 1167 | case TRUNCATE_FILE: |
1845fdd9 DR |
1168 | r = write_one_file(i, i->path); |
1169 | if (r < 0) | |
1170 | return r; | |
1171 | break; | |
265ffa1e | 1172 | |
5c5ccf12 | 1173 | case COPY_FILES: { |
5c5ccf12 LP |
1174 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1175 | if (r < 0) | |
1176 | return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); | |
1177 | ||
1178 | log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); | |
1179 | r = copy_tree(resolved, i->path, false); | |
f44b28fd MO |
1180 | |
1181 | if (r == -EROFS && stat(i->path, &st) == 0) | |
1182 | r = -EEXIST; | |
1183 | ||
849958d1 | 1184 | if (r < 0) { |
e156347e LP |
1185 | struct stat a, b; |
1186 | ||
8d3d7072 MS |
1187 | if (r != -EEXIST) |
1188 | return log_error_errno(r, "Failed to copy files to %s: %m", i->path); | |
e156347e | 1189 | |
5c5ccf12 LP |
1190 | if (stat(resolved, &a) < 0) |
1191 | return log_error_errno(errno, "stat(%s) failed: %m", resolved); | |
e156347e | 1192 | |
4a62c710 MS |
1193 | if (stat(i->path, &b) < 0) |
1194 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
e156347e LP |
1195 | |
1196 | if ((a.st_mode ^ b.st_mode) & S_IFMT) { | |
1197 | log_debug("Can't copy to %s, file exists already and is of different type", i->path); | |
1198 | return 0; | |
1199 | } | |
849958d1 LP |
1200 | } |
1201 | ||
b705ab6a | 1202 | r = path_set_perms(i, i->path); |
849958d1 LP |
1203 | if (r < 0) |
1204 | return r; | |
1205 | ||
1206 | break; | |
1207 | ||
d4e9eb91 | 1208 | case WRITE_FILE: |
081043cf | 1209 | r = glob_item(i, write_one_file, false); |
f05bc3f7 MS |
1210 | if (r < 0) |
1211 | return r; | |
5008d581 | 1212 | |
3b63d2d3 LP |
1213 | break; |
1214 | ||
3b63d2d3 | 1215 | case CREATE_DIRECTORY: |
d7b8eec7 LP |
1216 | case TRUNCATE_DIRECTORY: |
1217 | case CREATE_SUBVOLUME: | |
5fb13eb5 LP |
1218 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1219 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
5008d581 | 1220 | |
d7b8eec7 | 1221 | RUN_WITH_UMASK(0000) |
5c0d398d | 1222 | mkdir_parents_label(i->path, 0755); |
d7b8eec7 | 1223 | |
5fb13eb5 | 1224 | if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
2904e949 LP |
1225 | |
1226 | if (btrfs_is_subvol(isempty(arg_root) ? "/" : arg_root) <= 0) | |
1227 | ||
1228 | /* Don't create a subvolume unless the | |
1229 | * root directory is one, too. We do | |
1230 | * this under the assumption that if | |
1231 | * the root directory is just a plain | |
1232 | * directory (i.e. very light-weight), | |
1233 | * we shouldn't try to split it up | |
1234 | * into subvolumes (i.e. more | |
1235 | * heavy-weight). Thus, chroot() | |
1236 | * environments and suchlike will get | |
1237 | * a full brtfs subvolume set up below | |
1238 | * their tree only if they | |
1239 | * specifically set up a btrfs | |
1240 | * subvolume for the root dir too. */ | |
1241 | ||
1242 | r = -ENOTTY; | |
1243 | else { | |
1244 | RUN_WITH_UMASK((~i->mode) & 0777) | |
1245 | r = btrfs_subvol_make(i->path); | |
1246 | } | |
5fb13eb5 | 1247 | } else |
d7b8eec7 LP |
1248 | r = 0; |
1249 | ||
582deb84 | 1250 | if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) |
d7b8eec7 LP |
1251 | RUN_WITH_UMASK(0000) |
1252 | r = mkdir_label(i->path, i->mode); | |
5008d581 | 1253 | |
e156347e | 1254 | if (r < 0) { |
7b135a73 | 1255 | int k; |
5008d581 | 1256 | |
7b135a73 LP |
1257 | if (r != -EEXIST && r != -EROFS) |
1258 | return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); | |
5008d581 | 1259 | |
7b135a73 LP |
1260 | k = is_dir(i->path, false); |
1261 | if (k == -ENOENT && r == -EROFS) | |
1262 | return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); | |
1263 | if (k < 0) | |
1264 | return log_error_errno(k, "Failed to check if %s exists: %m", i->path); | |
1265 | if (!k) { | |
1266 | log_warning("\"%s\" already exists and is not a directory.", i->path); | |
e156347e LP |
1267 | return 0; |
1268 | } | |
294929f8 ZJS |
1269 | |
1270 | creation = CREATION_EXISTING; | |
1271 | } else | |
1272 | creation = CREATION_NORMAL; | |
7b135a73 | 1273 | |
7a7d5db7 | 1274 | log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
5008d581 | 1275 | |
5fb13eb5 LP |
1276 | if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
1277 | r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); | |
114a17d2 | 1278 | if (r == -ENOTTY) |
5fb13eb5 | 1279 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of unsupported file system or because directory is not a subvolume: %m", i->path); |
114a17d2 | 1280 | else if (r == -EROFS) |
5fb13eb5 | 1281 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because of read-only file system: %m", i->path); |
114a17d2 | 1282 | else if (r == -ENOPROTOOPT) |
be6d467c | 1283 | log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" because quota support is disabled: %m", i->path); |
114a17d2 EV |
1284 | else if (r < 0) |
1285 | q = log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); | |
1286 | else if (r > 0) | |
5fb13eb5 | 1287 | log_debug("Adjusted quota for subvolume \"%s\".", i->path); |
114a17d2 | 1288 | else if (r == 0) |
5fb13eb5 LP |
1289 | log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); |
1290 | } | |
1291 | ||
b705ab6a | 1292 | r = path_set_perms(i, i->path); |
114a17d2 EV |
1293 | if (q < 0) |
1294 | return q; | |
f05bc3f7 MS |
1295 | if (r < 0) |
1296 | return r; | |
3b63d2d3 LP |
1297 | |
1298 | break; | |
ee17ee7c LP |
1299 | |
1300 | case CREATE_FIFO: | |
1301 | ||
5c0d398d | 1302 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1303 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
5c0d398d | 1304 | r = mkfifo(i->path, i->mode); |
ecabcf8b | 1305 | mac_selinux_create_file_clear(); |
5c0d398d | 1306 | } |
ee17ee7c | 1307 | |
1554afae | 1308 | if (r < 0) { |
4a62c710 MS |
1309 | if (errno != EEXIST) |
1310 | return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); | |
ee17ee7c | 1311 | |
a542c4dc | 1312 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1313 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
ee17ee7c | 1314 | |
1554afae LP |
1315 | if (!S_ISFIFO(st.st_mode)) { |
1316 | ||
1317 | if (i->force) { | |
1554afae | 1318 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1319 | mac_selinux_create_file_prepare(i->path, S_IFIFO); |
1554afae | 1320 | r = mkfifo_atomic(i->path, i->mode); |
ecabcf8b | 1321 | mac_selinux_create_file_clear(); |
1554afae LP |
1322 | } |
1323 | ||
f647962d MS |
1324 | if (r < 0) |
1325 | return log_error_errno(r, "Failed to create fifo %s: %m", i->path); | |
294929f8 | 1326 | creation = CREATION_FORCE; |
1554afae | 1327 | } else { |
a542c4dc | 1328 | log_warning("\"%s\" already exists and is not a fifo.", i->path); |
1554afae LP |
1329 | return 0; |
1330 | } | |
294929f8 ZJS |
1331 | } else |
1332 | creation = CREATION_EXISTING; | |
1333 | } else | |
1334 | creation = CREATION_NORMAL; | |
7a7d5db7 | 1335 | log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
ee17ee7c | 1336 | |
b705ab6a | 1337 | r = path_set_perms(i, i->path); |
f05bc3f7 MS |
1338 | if (r < 0) |
1339 | return r; | |
ee17ee7c LP |
1340 | |
1341 | break; | |
5c5ccf12 | 1342 | } |
a8d88783 | 1343 | |
5c5ccf12 | 1344 | case CREATE_SYMLINK: { |
5c5ccf12 LP |
1345 | r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
1346 | if (r < 0) | |
1347 | return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); | |
468d726b | 1348 | |
ecabcf8b | 1349 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1350 | r = symlink(resolved, i->path); |
ecabcf8b | 1351 | mac_selinux_create_file_clear(); |
e9a5ef7c | 1352 | |
468d726b | 1353 | if (r < 0) { |
2e78fa79 | 1354 | _cleanup_free_ char *x = NULL; |
468d726b | 1355 | |
4a62c710 | 1356 | if (errno != EEXIST) |
5c5ccf12 | 1357 | return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); |
2e78fa79 LP |
1358 | |
1359 | r = readlink_malloc(i->path, &x); | |
5c5ccf12 | 1360 | if (r < 0 || !streq(resolved, x)) { |
2e78fa79 LP |
1361 | |
1362 | if (i->force) { | |
ecabcf8b | 1363 | mac_selinux_create_file_prepare(i->path, S_IFLNK); |
5c5ccf12 | 1364 | r = symlink_atomic(resolved, i->path); |
ecabcf8b | 1365 | mac_selinux_create_file_clear(); |
2e78fa79 | 1366 | |
f647962d | 1367 | if (r < 0) |
5c5ccf12 | 1368 | return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); |
a542c4dc | 1369 | |
294929f8 | 1370 | creation = CREATION_FORCE; |
1554afae | 1371 | } else { |
582deb84 | 1372 | log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
1554afae LP |
1373 | return 0; |
1374 | } | |
294929f8 ZJS |
1375 | } else |
1376 | creation = CREATION_EXISTING; | |
1377 | } else | |
a542c4dc | 1378 | |
294929f8 | 1379 | creation = CREATION_NORMAL; |
7a7d5db7 | 1380 | log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
468d726b | 1381 | break; |
5c5ccf12 | 1382 | } |
468d726b LP |
1383 | |
1384 | case CREATE_BLOCK_DEVICE: | |
1385 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
1386 | mode_t file_type; |
1387 | ||
1388 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
1389 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 1390 | shouldn't attempt to create the device node in |
cb7ed9df LP |
1391 | that case to avoid noise, and we don't support |
1392 | virtualized devices in containers anyway. */ | |
1393 | ||
1394 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
1395 | return 0; | |
1396 | } | |
1397 | ||
1554afae | 1398 | file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
468d726b | 1399 | |
5c0d398d | 1400 | RUN_WITH_UMASK(0000) { |
ecabcf8b | 1401 | mac_selinux_create_file_prepare(i->path, file_type); |
5c0d398d | 1402 | r = mknod(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1403 | mac_selinux_create_file_clear(); |
5c0d398d | 1404 | } |
468d726b | 1405 | |
6555ad8e KS |
1406 | if (r < 0) { |
1407 | if (errno == EPERM) { | |
1408 | log_debug("We lack permissions, possibly because of cgroup configuration; " | |
1409 | "skipping creation of device node %s.", i->path); | |
1410 | return 0; | |
1411 | } | |
1412 | ||
4a62c710 MS |
1413 | if (errno != EEXIST) |
1414 | return log_error_errno(errno, "Failed to create device node %s: %m", i->path); | |
468d726b | 1415 | |
a542c4dc | 1416 | if (lstat(i->path, &st) < 0) |
4a62c710 | 1417 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); |
468d726b | 1418 | |
1554afae LP |
1419 | if ((st.st_mode & S_IFMT) != file_type) { |
1420 | ||
1421 | if (i->force) { | |
1422 | ||
1423 | RUN_WITH_UMASK(0000) { | |
ecabcf8b | 1424 | mac_selinux_create_file_prepare(i->path, file_type); |
1554afae | 1425 | r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
ecabcf8b | 1426 | mac_selinux_create_file_clear(); |
1554afae LP |
1427 | } |
1428 | ||
f647962d | 1429 | if (r < 0) |
294929f8 ZJS |
1430 | return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
1431 | creation = CREATION_FORCE; | |
1554afae LP |
1432 | } else { |
1433 | log_debug("%s is not a device node.", i->path); | |
1434 | return 0; | |
1435 | } | |
294929f8 ZJS |
1436 | } else |
1437 | creation = CREATION_EXISTING; | |
1438 | } else | |
1439 | creation = CREATION_NORMAL; | |
a542c4dc | 1440 | |
294929f8 | 1441 | log_debug("%s %s device node \"%s\" %u:%u.", |
7a7d5db7 | 1442 | creation_mode_verb_to_string(creation), |
582deb84 ZJS |
1443 | i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
1444 | i->path, major(i->mode), minor(i->mode)); | |
468d726b | 1445 | |
b705ab6a | 1446 | r = path_set_perms(i, i->path); |
468d726b LP |
1447 | if (r < 0) |
1448 | return r; | |
1449 | ||
1450 | break; | |
1451 | } | |
1452 | ||
e73a03e0 | 1453 | case ADJUST_MODE: |
777b87e7 | 1454 | case RELABEL_PATH: |
b705ab6a | 1455 | r = glob_item(i, path_set_perms, false); |
777b87e7 | 1456 | if (r < 0) |
96ca8194 | 1457 | return r; |
777b87e7 MS |
1458 | break; |
1459 | ||
a8d88783 | 1460 | case RECURSIVE_RELABEL_PATH: |
b705ab6a | 1461 | r = glob_item(i, path_set_perms, true); |
a8d88783 MS |
1462 | if (r < 0) |
1463 | return r; | |
ebf4e801 | 1464 | break; |
e73a03e0 | 1465 | |
ebf4e801 | 1466 | case SET_XATTR: |
b705ab6a ZJS |
1467 | r = glob_item(i, path_set_xattrs, false); |
1468 | if (r < 0) | |
1469 | return r; | |
1470 | break; | |
1471 | ||
1472 | case RECURSIVE_SET_XATTR: | |
1473 | r = glob_item(i, path_set_xattrs, true); | |
ebf4e801 MW |
1474 | if (r < 0) |
1475 | return r; | |
e73a03e0 | 1476 | break; |
f8eeeaf9 ZJS |
1477 | |
1478 | case SET_ACL: | |
b705ab6a | 1479 | r = glob_item(i, path_set_acls, false); |
f8eeeaf9 ZJS |
1480 | if (r < 0) |
1481 | return r; | |
b705ab6a ZJS |
1482 | break; |
1483 | ||
1484 | case RECURSIVE_SET_ACL: | |
1485 | r = glob_item(i, path_set_acls, true); | |
1486 | if (r < 0) | |
1487 | return r; | |
1488 | break; | |
22c3a6ca | 1489 | |
88ec4dfa LP |
1490 | case SET_ATTRIBUTE: |
1491 | r = glob_item(i, path_set_attribute, false); | |
22c3a6ca GB |
1492 | if (r < 0) |
1493 | return r; | |
1494 | break; | |
1495 | ||
88ec4dfa LP |
1496 | case RECURSIVE_SET_ATTRIBUTE: |
1497 | r = glob_item(i, path_set_attribute, true); | |
22c3a6ca GB |
1498 | if (r < 0) |
1499 | return r; | |
1500 | break; | |
3b63d2d3 LP |
1501 | } |
1502 | ||
f05bc3f7 | 1503 | return 0; |
3b63d2d3 LP |
1504 | } |
1505 | ||
a0896123 | 1506 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
1507 | int r; |
1508 | ||
1509 | assert(i); | |
1510 | ||
1511 | switch (i->type) { | |
1512 | ||
3b63d2d3 | 1513 | case REMOVE_PATH: |
4a62c710 | 1514 | if (remove(instance) < 0 && errno != ENOENT) |
3f93da98 | 1515 | return log_error_errno(errno, "rm(%s): %m", instance); |
3b63d2d3 LP |
1516 | |
1517 | break; | |
1518 | ||
1519 | case TRUNCATE_DIRECTORY: | |
1520 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
1521 | /* FIXME: we probably should use dir_cleanup() here |
1522 | * instead of rm_rf() so that 'x' is honoured. */ | |
582deb84 | 1523 | log_debug("rm -rf \"%s\"", instance); |
1b26f09e | 1524 | r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
f647962d MS |
1525 | if (r < 0 && r != -ENOENT) |
1526 | return log_error_errno(r, "rm_rf(%s): %m", instance); | |
3b63d2d3 LP |
1527 | |
1528 | break; | |
7fcb4b9b ZJS |
1529 | |
1530 | default: | |
1531 | assert_not_reached("wut?"); | |
3b63d2d3 LP |
1532 | } |
1533 | ||
1534 | return 0; | |
1535 | } | |
1536 | ||
a0896123 | 1537 | static int remove_item(Item *i) { |
99e68c0b MS |
1538 | int r = 0; |
1539 | ||
b8bb3e8f LP |
1540 | assert(i); |
1541 | ||
582deb84 ZJS |
1542 | log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
1543 | ||
b8bb3e8f LP |
1544 | switch (i->type) { |
1545 | ||
1546 | case CREATE_FILE: | |
1547 | case TRUNCATE_FILE: | |
1548 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1549 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1550 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1551 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
ee17ee7c | 1552 | case CREATE_FIFO: |
468d726b LP |
1553 | case CREATE_SYMLINK: |
1554 | case CREATE_CHAR_DEVICE: | |
1555 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 1556 | case IGNORE_PATH: |
78a92a5a | 1557 | case IGNORE_DIRECTORY_PATH: |
e73a03e0 | 1558 | case ADJUST_MODE: |
777b87e7 | 1559 | case RELABEL_PATH: |
a8d88783 | 1560 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 1561 | case WRITE_FILE: |
849958d1 | 1562 | case COPY_FILES: |
ebf4e801 | 1563 | case SET_XATTR: |
b705ab6a | 1564 | case RECURSIVE_SET_XATTR: |
f8eeeaf9 | 1565 | case SET_ACL: |
b705ab6a | 1566 | case RECURSIVE_SET_ACL: |
88ec4dfa LP |
1567 | case SET_ATTRIBUTE: |
1568 | case RECURSIVE_SET_ATTRIBUTE: | |
b8bb3e8f LP |
1569 | break; |
1570 | ||
1571 | case REMOVE_PATH: | |
1572 | case TRUNCATE_DIRECTORY: | |
99e68c0b | 1573 | case RECURSIVE_REMOVE_PATH: |
081043cf | 1574 | r = glob_item(i, remove_item_instance, false); |
99e68c0b | 1575 | break; |
b8bb3e8f LP |
1576 | } |
1577 | ||
99e68c0b | 1578 | return r; |
b8bb3e8f LP |
1579 | } |
1580 | ||
78a92a5a | 1581 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 1582 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
1583 | struct stat s, ps; |
1584 | bool mountpoint; | |
78a92a5a | 1585 | usec_t cutoff, n; |
582deb84 | 1586 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
78a92a5a MS |
1587 | |
1588 | assert(i); | |
1589 | ||
1590 | if (!i->age_set) | |
1591 | return 0; | |
1592 | ||
1593 | n = now(CLOCK_REALTIME); | |
1594 | if (n < i->age) | |
1595 | return 0; | |
1596 | ||
1597 | cutoff = n - i->age; | |
1598 | ||
df99a9ef | 1599 | d = opendir_nomod(instance); |
78a92a5a | 1600 | if (!d) { |
582deb84 ZJS |
1601 | if (errno == ENOENT || errno == ENOTDIR) { |
1602 | log_debug_errno(errno, "Directory \"%s\": %m", instance); | |
78a92a5a | 1603 | return 0; |
582deb84 | 1604 | } |
78a92a5a | 1605 | |
582deb84 | 1606 | log_error_errno(errno, "Failed to open directory %s: %m", instance); |
78a92a5a MS |
1607 | return -errno; |
1608 | } | |
1609 | ||
4a62c710 MS |
1610 | if (fstat(dirfd(d), &s) < 0) |
1611 | return log_error_errno(errno, "stat(%s) failed: %m", i->path); | |
78a92a5a MS |
1612 | |
1613 | if (!S_ISDIR(s.st_mode)) { | |
1614 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 1615 | return -ENOTDIR; |
78a92a5a MS |
1616 | } |
1617 | ||
4a62c710 MS |
1618 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) |
1619 | return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); | |
78a92a5a | 1620 | |
2bb158c1 | 1621 | mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; |
78a92a5a | 1622 | |
582deb84 ZJS |
1623 | log_debug("Cleanup threshold for %s \"%s\" is %s", |
1624 | mountpoint ? "mount point" : "directory", | |
1625 | instance, | |
1626 | format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); | |
1627 | ||
1628 | return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, | |
1629 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
1630 | } |
1631 | ||
1632 | static int clean_item(Item *i) { | |
1633 | int r = 0; | |
1634 | ||
1635 | assert(i); | |
1636 | ||
582deb84 ZJS |
1637 | log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
1638 | ||
78a92a5a MS |
1639 | switch (i->type) { |
1640 | case CREATE_DIRECTORY: | |
d7b8eec7 | 1641 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1642 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1643 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
78a92a5a MS |
1644 | case TRUNCATE_DIRECTORY: |
1645 | case IGNORE_PATH: | |
849958d1 | 1646 | case COPY_FILES: |
78a92a5a MS |
1647 | clean_item_instance(i, i->path); |
1648 | break; | |
1649 | case IGNORE_DIRECTORY_PATH: | |
081043cf | 1650 | r = glob_item(i, clean_item_instance, false); |
78a92a5a MS |
1651 | break; |
1652 | default: | |
1653 | break; | |
1654 | } | |
1655 | ||
1656 | return r; | |
1657 | } | |
1658 | ||
3f93da98 ZJS |
1659 | static int process_item_array(ItemArray *array); |
1660 | ||
3b63d2d3 | 1661 | static int process_item(Item *i) { |
1e95893a | 1662 | int r, q, p, t = 0; |
9348f0e6 | 1663 | _cleanup_free_ char *prefix = NULL; |
3b63d2d3 LP |
1664 | |
1665 | assert(i); | |
1666 | ||
1910cd0e LP |
1667 | if (i->done) |
1668 | return 0; | |
1669 | ||
1670 | i->done = true; | |
1671 | ||
9348f0e6 ZJS |
1672 | prefix = malloc(strlen(i->path) + 1); |
1673 | if (!prefix) | |
1674 | return log_oom(); | |
1675 | ||
1910cd0e | 1676 | PATH_FOREACH_PREFIX(prefix, i->path) { |
3f93da98 | 1677 | ItemArray *j; |
1910cd0e | 1678 | |
ef43a391 | 1679 | j = ordered_hashmap_get(items, prefix); |
1db50423 ZJS |
1680 | if (j) { |
1681 | int s; | |
1682 | ||
3f93da98 | 1683 | s = process_item_array(j); |
1db50423 ZJS |
1684 | if (s < 0 && t == 0) |
1685 | t = s; | |
1686 | } | |
1910cd0e LP |
1687 | } |
1688 | ||
3b63d2d3 | 1689 | r = arg_create ? create_item(i) : 0; |
a0896123 | 1690 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1691 | p = arg_clean ? clean_item(i) : 0; |
1692 | ||
1db50423 ZJS |
1693 | return t < 0 ? t : |
1694 | r < 0 ? r : | |
1695 | q < 0 ? q : | |
1696 | p; | |
3b63d2d3 LP |
1697 | } |
1698 | ||
3f93da98 ZJS |
1699 | static int process_item_array(ItemArray *array) { |
1700 | unsigned n; | |
1701 | int r = 0, k; | |
753615e8 | 1702 | |
3f93da98 ZJS |
1703 | assert(array); |
1704 | ||
1705 | for (n = 0; n < array->count; n++) { | |
1706 | k = process_item(array->items + n); | |
1707 | if (k < 0 && r == 0) | |
1708 | r = k; | |
1709 | } | |
1710 | ||
1711 | return r; | |
1712 | } | |
3b63d2d3 | 1713 | |
3f93da98 ZJS |
1714 | static void item_free_contents(Item *i) { |
1715 | assert(i); | |
3b63d2d3 | 1716 | free(i->path); |
468d726b | 1717 | free(i->argument); |
ebf4e801 | 1718 | strv_free(i->xattrs); |
f8eeeaf9 ZJS |
1719 | |
1720 | #ifdef HAVE_ACL | |
1721 | acl_free(i->acl_access); | |
1722 | acl_free(i->acl_default); | |
1723 | #endif | |
3b63d2d3 LP |
1724 | } |
1725 | ||
3f93da98 ZJS |
1726 | static void item_array_free(ItemArray *a) { |
1727 | unsigned n; | |
1728 | ||
1729 | if (!a) | |
1730 | return; | |
1731 | ||
1732 | for (n = 0; n < a->count; n++) | |
1733 | item_free_contents(a->items + n); | |
1734 | free(a->items); | |
1735 | free(a); | |
1736 | } | |
e2f2fb78 | 1737 | |
17493fa5 LP |
1738 | static int item_compare(const void *a, const void *b) { |
1739 | const Item *x = a, *y = b; | |
1740 | ||
1741 | /* Make sure that the ownership taking item is put first, so | |
1742 | * that we first create the node, and then can adjust it */ | |
1743 | ||
1744 | if (takes_ownership(x->type) && !takes_ownership(y->type)) | |
1745 | return -1; | |
1746 | if (!takes_ownership(x->type) && takes_ownership(y->type)) | |
1747 | return 1; | |
1748 | ||
1749 | return (int) x->type - (int) y->type; | |
1750 | } | |
1751 | ||
3f93da98 | 1752 | static bool item_compatible(Item *a, Item *b) { |
bfe95f35 LP |
1753 | assert(a); |
1754 | assert(b); | |
3f93da98 | 1755 | assert(streq(a->path, b->path)); |
bfe95f35 | 1756 | |
3f93da98 ZJS |
1757 | if (takes_ownership(a->type) && takes_ownership(b->type)) |
1758 | /* check if the items are the same */ | |
1759 | return streq_ptr(a->argument, b->argument) && | |
bfe95f35 | 1760 | |
3f93da98 ZJS |
1761 | a->uid_set == b->uid_set && |
1762 | a->uid == b->uid && | |
bfe95f35 | 1763 | |
3f93da98 ZJS |
1764 | a->gid_set == b->gid_set && |
1765 | a->gid == b->gid && | |
bfe95f35 | 1766 | |
3f93da98 ZJS |
1767 | a->mode_set == b->mode_set && |
1768 | a->mode == b->mode && | |
bfe95f35 | 1769 | |
3f93da98 ZJS |
1770 | a->age_set == b->age_set && |
1771 | a->age == b->age && | |
bfe95f35 | 1772 | |
3f93da98 | 1773 | a->mask_perms == b->mask_perms && |
bfe95f35 | 1774 | |
3f93da98 | 1775 | a->keep_first_level == b->keep_first_level && |
468d726b | 1776 | |
3f93da98 | 1777 | a->major_minor == b->major_minor; |
468d726b | 1778 | |
bfe95f35 LP |
1779 | return true; |
1780 | } | |
1781 | ||
a2aced4a DR |
1782 | static bool should_include_path(const char *path) { |
1783 | char **prefix; | |
1784 | ||
abef3f91 | 1785 | STRV_FOREACH(prefix, arg_exclude_prefixes) |
582deb84 ZJS |
1786 | if (path_startswith(path, *prefix)) { |
1787 | log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", | |
1788 | path, *prefix); | |
5c795114 | 1789 | return false; |
582deb84 | 1790 | } |
a2aced4a | 1791 | |
abef3f91 | 1792 | STRV_FOREACH(prefix, arg_include_prefixes) |
582deb84 ZJS |
1793 | if (path_startswith(path, *prefix)) { |
1794 | log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); | |
a2aced4a | 1795 | return true; |
582deb84 | 1796 | } |
a2aced4a | 1797 | |
5c795114 DR |
1798 | /* no matches, so we should include this path only if we |
1799 | * have no whitelist at all */ | |
582deb84 ZJS |
1800 | if (strv_length(arg_include_prefixes) == 0) |
1801 | return true; | |
1802 | ||
1803 | log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); | |
1804 | return false; | |
a2aced4a DR |
1805 | } |
1806 | ||
fba6e687 | 1807 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a | 1808 | |
cde684a2 | 1809 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
3f93da98 ZJS |
1810 | _cleanup_(item_free_contents) Item i = {}; |
1811 | ItemArray *existing; | |
ef43a391 | 1812 | OrderedHashmap *h; |
657cf7f4 | 1813 | int r, pos; |
5f255144 | 1814 | bool force = false, boot = false; |
3b63d2d3 LP |
1815 | |
1816 | assert(fname); | |
1817 | assert(line >= 1); | |
1818 | assert(buffer); | |
1819 | ||
68685607 | 1820 | r = extract_many_words( |
4034a06d | 1821 | &buffer, |
68685607 | 1822 | NULL, |
12ba2c44 | 1823 | EXTRACT_QUOTES, |
4034a06d LP |
1824 | &action, |
1825 | &path, | |
1826 | &mode, | |
1827 | &user, | |
1828 | &group, | |
1829 | &age, | |
1830 | NULL); | |
657cf7f4 | 1831 | if (r < 0) |
1832 | return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); | |
1833 | else if (r < 2) { | |
3b63d2d3 | 1834 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1835 | return -EIO; |
5008d581 LP |
1836 | } |
1837 | ||
aa5f6817 | 1838 | if (!isempty(buffer) && !streq(buffer, "-")) { |
4034a06d LP |
1839 | i.argument = strdup(buffer); |
1840 | if (!i.argument) | |
1841 | return log_oom(); | |
1842 | } | |
1843 | ||
2e78fa79 LP |
1844 | if (isempty(action)) { |
1845 | log_error("[%s:%u] Command too short '%s'.", fname, line, action); | |
c4708f13 | 1846 | return -EINVAL; |
2e78fa79 LP |
1847 | } |
1848 | ||
5f255144 ZJS |
1849 | for (pos = 1; action[pos]; pos++) { |
1850 | if (action[pos] == '!' && !boot) | |
1851 | boot = true; | |
1852 | else if (action[pos] == '+' && !force) | |
1853 | force = true; | |
1854 | else { | |
1855 | log_error("[%s:%u] Unknown modifiers in command '%s'", | |
1856 | fname, line, action); | |
1857 | return -EINVAL; | |
1858 | } | |
2e78fa79 LP |
1859 | } |
1860 | ||
582deb84 ZJS |
1861 | if (boot && !arg_boot) { |
1862 | log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", | |
1863 | action, path); | |
c4708f13 | 1864 | return 0; |
582deb84 | 1865 | } |
c4708f13 | 1866 | |
3f93da98 ZJS |
1867 | i.type = action[0]; |
1868 | i.force = force; | |
2e78fa79 | 1869 | |
3f93da98 | 1870 | r = specifier_printf(path, specifier_table, NULL, &i.path); |
1731e34a LP |
1871 | if (r < 0) { |
1872 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1873 | return r; | |
1874 | } | |
1875 | ||
3f93da98 | 1876 | switch (i.type) { |
468d726b | 1877 | |
777b87e7 | 1878 | case CREATE_DIRECTORY: |
d7b8eec7 | 1879 | case CREATE_SUBVOLUME: |
5fb13eb5 LP |
1880 | case CREATE_SUBVOLUME_INHERIT_QUOTA: |
1881 | case CREATE_SUBVOLUME_NEW_QUOTA: | |
777b87e7 MS |
1882 | case TRUNCATE_DIRECTORY: |
1883 | case CREATE_FIFO: | |
1884 | case IGNORE_PATH: | |
78a92a5a | 1885 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1886 | case REMOVE_PATH: |
1887 | case RECURSIVE_REMOVE_PATH: | |
e73a03e0 | 1888 | case ADJUST_MODE: |
777b87e7 MS |
1889 | case RELABEL_PATH: |
1890 | case RECURSIVE_RELABEL_PATH: | |
c82500c6 | 1891 | if (i.argument) |
bd550f78 | 1892 | log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
c82500c6 LP |
1893 | |
1894 | break; | |
1895 | ||
1896 | case CREATE_FILE: | |
1897 | case TRUNCATE_FILE: | |
777b87e7 | 1898 | break; |
468d726b LP |
1899 | |
1900 | case CREATE_SYMLINK: | |
3f93da98 ZJS |
1901 | if (!i.argument) { |
1902 | i.argument = strappend("/usr/share/factory/", i.path); | |
1903 | if (!i.argument) | |
2f3b873a | 1904 | return log_oom(); |
468d726b LP |
1905 | } |
1906 | break; | |
1907 | ||
31ed59c5 | 1908 | case WRITE_FILE: |
3f93da98 | 1909 | if (!i.argument) { |
31ed59c5 | 1910 | log_error("[%s:%u] Write file requires argument.", fname, line); |
7f2c1f4d | 1911 | return -EBADMSG; |
31ed59c5 LP |
1912 | } |
1913 | break; | |
1914 | ||
849958d1 | 1915 | case COPY_FILES: |
3f93da98 ZJS |
1916 | if (!i.argument) { |
1917 | i.argument = strappend("/usr/share/factory/", i.path); | |
1918 | if (!i.argument) | |
2f3b873a | 1919 | return log_oom(); |
3f93da98 | 1920 | } else if (!path_is_absolute(i.argument)) { |
849958d1 LP |
1921 | log_error("[%s:%u] Source path is not absolute.", fname, line); |
1922 | return -EBADMSG; | |
1923 | } | |
1924 | ||
3f93da98 | 1925 | path_kill_slashes(i.argument); |
849958d1 LP |
1926 | break; |
1927 | ||
468d726b LP |
1928 | case CREATE_CHAR_DEVICE: |
1929 | case CREATE_BLOCK_DEVICE: { | |
1930 | unsigned major, minor; | |
1931 | ||
3f93da98 | 1932 | if (!i.argument) { |
468d726b | 1933 | log_error("[%s:%u] Device file requires argument.", fname, line); |
7f2c1f4d | 1934 | return -EBADMSG; |
468d726b LP |
1935 | } |
1936 | ||
3f93da98 ZJS |
1937 | if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { |
1938 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); | |
7f2c1f4d | 1939 | return -EBADMSG; |
468d726b LP |
1940 | } |
1941 | ||
3f93da98 | 1942 | i.major_minor = makedev(major, minor); |
468d726b LP |
1943 | break; |
1944 | } | |
1945 | ||
ebf4e801 | 1946 | case SET_XATTR: |
b705ab6a | 1947 | case RECURSIVE_SET_XATTR: |
3f93da98 | 1948 | if (!i.argument) { |
ebf4e801 MW |
1949 | log_error("[%s:%u] Set extended attribute requires argument.", fname, line); |
1950 | return -EBADMSG; | |
1951 | } | |
bd550f78 | 1952 | r = parse_xattrs_from_arg(&i); |
ebf4e801 MW |
1953 | if (r < 0) |
1954 | return r; | |
1955 | break; | |
1956 | ||
f8eeeaf9 | 1957 | case SET_ACL: |
b705ab6a | 1958 | case RECURSIVE_SET_ACL: |
f8eeeaf9 ZJS |
1959 | if (!i.argument) { |
1960 | log_error("[%s:%u] Set ACLs requires argument.", fname, line); | |
1961 | return -EBADMSG; | |
1962 | } | |
bd550f78 | 1963 | r = parse_acls_from_arg(&i); |
f8eeeaf9 ZJS |
1964 | if (r < 0) |
1965 | return r; | |
1966 | break; | |
1967 | ||
88ec4dfa LP |
1968 | case SET_ATTRIBUTE: |
1969 | case RECURSIVE_SET_ATTRIBUTE: | |
22c3a6ca | 1970 | if (!i.argument) { |
88ec4dfa | 1971 | log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
22c3a6ca GB |
1972 | return -EBADMSG; |
1973 | } | |
bd550f78 | 1974 | r = parse_attribute_from_arg(&i); |
22c3a6ca GB |
1975 | if (r < 0) |
1976 | return r; | |
1977 | break; | |
1978 | ||
777b87e7 | 1979 | default: |
582deb84 | 1980 | log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
7f2c1f4d | 1981 | return -EBADMSG; |
3b63d2d3 | 1982 | } |
468d726b | 1983 | |
3f93da98 ZJS |
1984 | if (!path_is_absolute(i.path)) { |
1985 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); | |
7f2c1f4d | 1986 | return -EBADMSG; |
3b63d2d3 LP |
1987 | } |
1988 | ||
3f93da98 | 1989 | path_kill_slashes(i.path); |
3b63d2d3 | 1990 | |
3f93da98 | 1991 | if (!should_include_path(i.path)) |
7f2c1f4d | 1992 | return 0; |
5008d581 | 1993 | |
cf9a4abd | 1994 | if (arg_root) { |
cde684a2 LP |
1995 | char *p; |
1996 | ||
1d13f648 | 1997 | p = prefix_root(arg_root, i.path); |
cf9a4abd MM |
1998 | if (!p) |
1999 | return log_oom(); | |
2000 | ||
3f93da98 ZJS |
2001 | free(i.path); |
2002 | i.path = p; | |
cf9a4abd MM |
2003 | } |
2004 | ||
90937fe3 | 2005 | if (!isempty(user) && !streq(user, "-")) { |
4b67834e LP |
2006 | const char *u = user; |
2007 | ||
3f93da98 | 2008 | r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); |
4b67834e | 2009 | if (r < 0) { |
3b63d2d3 | 2010 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 2011 | return r; |
3b63d2d3 LP |
2012 | } |
2013 | ||
3f93da98 | 2014 | i.uid_set = true; |
3b63d2d3 LP |
2015 | } |
2016 | ||
90937fe3 | 2017 | if (!isempty(group) && !streq(group, "-")) { |
4b67834e LP |
2018 | const char *g = group; |
2019 | ||
3f93da98 | 2020 | r = get_group_creds(&g, &i.gid); |
4b67834e | 2021 | if (r < 0) { |
3b63d2d3 | 2022 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 2023 | return r; |
3b63d2d3 LP |
2024 | } |
2025 | ||
3f93da98 | 2026 | i.gid_set = true; |
3b63d2d3 LP |
2027 | } |
2028 | ||
90937fe3 | 2029 | if (!isempty(mode) && !streq(mode, "-")) { |
abef3f91 | 2030 | const char *mm = mode; |
3b63d2d3 LP |
2031 | unsigned m; |
2032 | ||
abef3f91 | 2033 | if (*mm == '~') { |
3f93da98 | 2034 | i.mask_perms = true; |
abef3f91 LP |
2035 | mm++; |
2036 | } | |
2037 | ||
2ff7b0a5 | 2038 | if (parse_mode(mm, &m) < 0) { |
3b63d2d3 | 2039 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
2ff7b0a5 | 2040 | return -EBADMSG; |
3b63d2d3 LP |
2041 | } |
2042 | ||
3f93da98 ZJS |
2043 | i.mode = m; |
2044 | i.mode_set = true; | |
3b63d2d3 | 2045 | } else |
5fb13eb5 | 2046 | i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
3b63d2d3 | 2047 | |
90937fe3 | 2048 | if (!isempty(age) && !streq(age, "-")) { |
24f3a374 LP |
2049 | const char *a = age; |
2050 | ||
2051 | if (*a == '~') { | |
3f93da98 | 2052 | i.keep_first_level = true; |
24f3a374 LP |
2053 | a++; |
2054 | } | |
2055 | ||
3f93da98 | 2056 | if (parse_sec(a, &i.age) < 0) { |
3b63d2d3 | 2057 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 2058 | return -EBADMSG; |
3b63d2d3 LP |
2059 | } |
2060 | ||
3f93da98 | 2061 | i.age_set = true; |
3b63d2d3 LP |
2062 | } |
2063 | ||
3f93da98 | 2064 | h = needs_glob(i.type) ? globs : items; |
bfe95f35 | 2065 | |
ef43a391 | 2066 | existing = ordered_hashmap_get(h, i.path); |
468d726b | 2067 | if (existing) { |
3f93da98 ZJS |
2068 | unsigned n; |
2069 | ||
2070 | for (n = 0; n < existing->count; n++) { | |
6487ada8 | 2071 | if (!item_compatible(existing->items + n, &i)) { |
505ef0e3 | 2072 | log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", |
3f93da98 | 2073 | fname, line, i.path); |
6487ada8 MP |
2074 | return 0; |
2075 | } | |
ebf4e801 MW |
2076 | } |
2077 | } else { | |
3f93da98 | 2078 | existing = new0(ItemArray, 1); |
ef43a391 | 2079 | r = ordered_hashmap_put(h, i.path, existing); |
3f93da98 ZJS |
2080 | if (r < 0) |
2081 | return log_oom(); | |
bfe95f35 LP |
2082 | } |
2083 | ||
3f93da98 ZJS |
2084 | if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
2085 | return log_oom(); | |
5008d581 | 2086 | |
3f93da98 | 2087 | memcpy(existing->items + existing->count++, &i, sizeof(i)); |
dd449aca ZJS |
2088 | |
2089 | /* Sort item array, to enforce stable ordering of application */ | |
2090 | qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); | |
17493fa5 | 2091 | |
3f93da98 | 2092 | zero(i); |
7f2c1f4d | 2093 | return 0; |
5008d581 LP |
2094 | } |
2095 | ||
601185b4 | 2096 | static void help(void) { |
522d4a49 LP |
2097 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
2098 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 2099 | " -h --help Show this help\n" |
eb9da376 | 2100 | " --version Show package version\n" |
5c795114 DR |
2101 | " --create Create marked files/directories\n" |
2102 | " --clean Clean up marked directories\n" | |
2103 | " --remove Remove marked files/directories\n" | |
81815651 | 2104 | " --boot Execute actions only safe at boot\n" |
79ca888f ZJS |
2105 | " --prefix=PATH Only apply rules with the specified prefix\n" |
2106 | " --exclude-prefix=PATH Ignore rules with the specified prefix\n" | |
cf9a4abd | 2107 | " --root=PATH Operate on an alternate filesystem root\n", |
3b63d2d3 | 2108 | program_invocation_short_name); |
3b63d2d3 LP |
2109 | } |
2110 | ||
2111 | static int parse_argv(int argc, char *argv[]) { | |
2112 | ||
2113 | enum { | |
eb9da376 | 2114 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
2115 | ARG_CREATE, |
2116 | ARG_CLEAN, | |
fba6e687 | 2117 | ARG_REMOVE, |
81815651 | 2118 | ARG_BOOT, |
5c795114 DR |
2119 | ARG_PREFIX, |
2120 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 2121 | ARG_ROOT, |
3b63d2d3 LP |
2122 | }; |
2123 | ||
2124 | static const struct option options[] = { | |
5c795114 | 2125 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 2126 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
2127 | { "create", no_argument, NULL, ARG_CREATE }, |
2128 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
2129 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 2130 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
2131 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
2132 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 2133 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 2134 | {} |
3b63d2d3 LP |
2135 | }; |
2136 | ||
0f474365 | 2137 | int c, r; |
3b63d2d3 LP |
2138 | |
2139 | assert(argc >= 0); | |
2140 | assert(argv); | |
2141 | ||
601185b4 | 2142 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
3b63d2d3 LP |
2143 | |
2144 | switch (c) { | |
2145 | ||
2146 | case 'h': | |
601185b4 ZJS |
2147 | help(); |
2148 | return 0; | |
eb9da376 LP |
2149 | |
2150 | case ARG_VERSION: | |
3f6fd1ba | 2151 | return version(); |
3b63d2d3 LP |
2152 | |
2153 | case ARG_CREATE: | |
2154 | arg_create = true; | |
2155 | break; | |
2156 | ||
2157 | case ARG_CLEAN: | |
2158 | arg_clean = true; | |
2159 | break; | |
2160 | ||
2161 | case ARG_REMOVE: | |
2162 | arg_remove = true; | |
2163 | break; | |
2164 | ||
81815651 ZJS |
2165 | case ARG_BOOT: |
2166 | arg_boot = true; | |
c4708f13 ZJS |
2167 | break; |
2168 | ||
fba6e687 | 2169 | case ARG_PREFIX: |
7bc040fa | 2170 | if (strv_push(&arg_include_prefixes, optarg) < 0) |
a2aced4a | 2171 | return log_oom(); |
fba6e687 LP |
2172 | break; |
2173 | ||
5c795114 | 2174 | case ARG_EXCLUDE_PREFIX: |
7bc040fa | 2175 | if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
5c795114 DR |
2176 | return log_oom(); |
2177 | break; | |
2178 | ||
cf9a4abd | 2179 | case ARG_ROOT: |
0f03c2a4 | 2180 | r = parse_path_argument_and_warn(optarg, true, &arg_root); |
0f474365 | 2181 | if (r < 0) |
0f03c2a4 | 2182 | return r; |
cf9a4abd MM |
2183 | break; |
2184 | ||
3b63d2d3 LP |
2185 | case '?': |
2186 | return -EINVAL; | |
2187 | ||
2188 | default: | |
eb9da376 | 2189 | assert_not_reached("Unhandled option"); |
3b63d2d3 | 2190 | } |
3b63d2d3 LP |
2191 | |
2192 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 2193 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
2194 | return -EINVAL; |
2195 | } | |
2196 | ||
2197 | return 1; | |
2198 | } | |
2199 | ||
fba6e687 | 2200 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
2201 | _cleanup_fclose_ FILE *f = NULL; |
2202 | char line[LINE_MAX]; | |
78a92a5a | 2203 | Iterator iterator; |
1731e34a | 2204 | unsigned v = 0; |
78a92a5a | 2205 | Item *i; |
1731e34a | 2206 | int r; |
fba6e687 LP |
2207 | |
2208 | assert(fn); | |
2209 | ||
cf9a4abd | 2210 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); |
fabe5c0e | 2211 | if (r < 0) { |
582deb84 ZJS |
2212 | if (ignore_enoent && r == -ENOENT) { |
2213 | log_debug_errno(r, "Failed to open \"%s\": %m", fn); | |
fba6e687 | 2214 | return 0; |
582deb84 | 2215 | } |
fba6e687 | 2216 | |
8d3d7072 | 2217 | return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); |
fba6e687 | 2218 | } |
582deb84 | 2219 | log_debug("Reading config file \"%s\".", fn); |
fba6e687 | 2220 | |
1731e34a LP |
2221 | FOREACH_LINE(line, f, break) { |
2222 | char *l; | |
fba6e687 LP |
2223 | int k; |
2224 | ||
fba6e687 LP |
2225 | v++; |
2226 | ||
2227 | l = strstrip(line); | |
2228 | if (*l == '#' || *l == 0) | |
2229 | continue; | |
2230 | ||
1731e34a LP |
2231 | k = parse_line(fn, v, l); |
2232 | if (k < 0 && r == 0) | |
2233 | r = k; | |
fba6e687 LP |
2234 | } |
2235 | ||
78a92a5a | 2236 | /* we have to determine age parameter for each entry of type X */ |
ef43a391 | 2237 | ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
78a92a5a MS |
2238 | Iterator iter; |
2239 | Item *j, *candidate_item = NULL; | |
2240 | ||
2241 | if (i->type != IGNORE_DIRECTORY_PATH) | |
2242 | continue; | |
2243 | ||
ef43a391 | 2244 | ORDERED_HASHMAP_FOREACH(j, items, iter) { |
5fb13eb5 | 2245 | if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
78a92a5a MS |
2246 | continue; |
2247 | ||
2248 | if (path_equal(j->path, i->path)) { | |
2249 | candidate_item = j; | |
2250 | break; | |
2251 | } | |
2252 | ||
2253 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
2254 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
2255 | candidate_item = j; | |
2256 | } | |
2257 | ||
9ed2a35e | 2258 | if (candidate_item && candidate_item->age_set) { |
78a92a5a MS |
2259 | i->age = candidate_item->age; |
2260 | i->age_set = true; | |
2261 | } | |
2262 | } | |
2263 | ||
fba6e687 | 2264 | if (ferror(f)) { |
56f64d95 | 2265 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
fba6e687 LP |
2266 | if (r == 0) |
2267 | r = -EIO; | |
2268 | } | |
2269 | ||
fba6e687 LP |
2270 | return r; |
2271 | } | |
2272 | ||
5008d581 | 2273 | int main(int argc, char *argv[]) { |
fabe5c0e | 2274 | int r, k; |
3f93da98 | 2275 | ItemArray *a; |
3b63d2d3 LP |
2276 | Iterator iterator; |
2277 | ||
fdcad0c2 LP |
2278 | r = parse_argv(argc, argv); |
2279 | if (r <= 0) | |
753615e8 | 2280 | goto finish; |
5008d581 | 2281 | |
eb0ca9eb | 2282 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
2283 | log_parse_environment(); |
2284 | log_open(); | |
2285 | ||
4c12626c LP |
2286 | umask(0022); |
2287 | ||
c3dacc8b | 2288 | mac_selinux_init(); |
5008d581 | 2289 | |
ef43a391 LP |
2290 | items = ordered_hashmap_new(&string_hash_ops); |
2291 | globs = ordered_hashmap_new(&string_hash_ops); | |
b8bb3e8f LP |
2292 | |
2293 | if (!items || !globs) { | |
fabe5c0e | 2294 | r = log_oom(); |
3b63d2d3 LP |
2295 | goto finish; |
2296 | } | |
2297 | ||
fabe5c0e | 2298 | r = 0; |
5008d581 | 2299 | |
fba6e687 LP |
2300 | if (optind < argc) { |
2301 | int j; | |
5008d581 | 2302 | |
9125670f | 2303 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
2304 | k = read_config_file(argv[j], false); |
2305 | if (k < 0 && r == 0) | |
2306 | r = k; | |
9125670f | 2307 | } |
5008d581 | 2308 | |
fba6e687 | 2309 | } else { |
fabe5c0e LP |
2310 | _cleanup_strv_free_ char **files = NULL; |
2311 | char **f; | |
5008d581 | 2312 | |
cf9a4abd | 2313 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
44143309 | 2314 | if (r < 0) { |
da927ba9 | 2315 | log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
44143309 KS |
2316 | goto finish; |
2317 | } | |
3b63d2d3 | 2318 | |
772f8371 | 2319 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
2320 | k = read_config_file(*f, true); |
2321 | if (k < 0 && r == 0) | |
2322 | r = k; | |
5008d581 | 2323 | } |
772f8371 | 2324 | } |
5008d581 | 2325 | |
17493fa5 LP |
2326 | /* The non-globbing ones usually create things, hence we apply |
2327 | * them first */ | |
ef43a391 | 2328 | ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
3f93da98 | 2329 | k = process_item_array(a); |
1db50423 ZJS |
2330 | if (k < 0 && r == 0) |
2331 | r = k; | |
2332 | } | |
b8bb3e8f | 2333 | |
17493fa5 LP |
2334 | /* The globbing ones usually alter things, hence we apply them |
2335 | * second. */ | |
ef43a391 | 2336 | ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
3f93da98 | 2337 | k = process_item_array(a); |
1db50423 ZJS |
2338 | if (k < 0 && r == 0) |
2339 | r = k; | |
2340 | } | |
3b63d2d3 | 2341 | |
5008d581 | 2342 | finish: |
ef43a391 | 2343 | while ((a = ordered_hashmap_steal_first(items))) |
3f93da98 | 2344 | item_array_free(a); |
3b63d2d3 | 2345 | |
ef43a391 | 2346 | while ((a = ordered_hashmap_steal_first(globs))) |
3f93da98 | 2347 | item_array_free(a); |
17b90525 | 2348 | |
ef43a391 LP |
2349 | ordered_hashmap_free(items); |
2350 | ordered_hashmap_free(globs); | |
5008d581 | 2351 | |
7bc040fa LP |
2352 | free(arg_include_prefixes); |
2353 | free(arg_exclude_prefixes); | |
cf9a4abd | 2354 | free(arg_root); |
a2aced4a | 2355 | |
17b90525 LP |
2356 | set_free_free(unix_sockets); |
2357 | ||
cc56fafe | 2358 | mac_selinux_finish(); |
29003cff | 2359 | |
fabe5c0e | 2360 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 2361 | } |